Then they can be further recrystallized to biphenyl with a purity of over 99.9 %.进一步用溶剂结晶法去除了联苯中的杂质,获得99.9%以上联苯.Methods A new synthesis route for felbinac preparation was studied with biphenyl under ultrasound.方法:以联苯为原料,...
But in vain -- the girl chirped on.可那个姑娘根本没明白过来, 还是照讲不停.The crickets chirped faster and louder.蟋蟀叫得更欢了。A bird chirped nearby somewhere.一只小鸟在附近什么地方吱吱地叫着.'See you soon, I hope!' chirped my mother.“希望很快能再见！”我妈开心地大...
The spire of the tower dominates the foreground.塔尖在前景中占了主要地位.The church spire was struck by lightning.教堂的尖顶遭到了雷击.No one would dream of straightening out the knobbly spire at Empingham Church.谁都无法将埃姆平汉教堂疙瘩嶙峋的尖顶弄直。...
All architecture on the tableland is defensive, all monuments are like forts.在这高原上,所有建筑样式都是防御式的, 所有遗迹都像要塞.They have been herding cattle on the tableland for generations.他们世世代代在这高原上放牧。the tableland areas高原地区Night slowly r...
Skin allergy, how is the scar that there is extravasated blood eliminated?皮肤过敏, 有淤血的疤痕怎么消除?Magma extravasated as pressure built under ground.当地底下的压力生成时,岩浆喷发.The damaged wings in broilers processing showed as wing broken,...